Flatbush Zombies, Jim Jones, El-P, Flosstradamus and Juicy J all feature on the raved-up remix of A-Trak's “Piss Test,” streaming below. The laser-licked beat seems to have a rejuvenating effect: everyone raps fiercely about their omnivorous drug appetites, determined to be the the MC that cares the least about the dreaded test. Well, almost everyone. El-P just wants to be the best rapper on the track, and he easily succeeds.